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GNU GRUB (aka GRUB2) through 2.12 does not use a constant-time algorithm for grub_crypto_memcmp and thus allows side-channel attacks.

🗓️ 03 Sep 2025 22:01:43Reported by MicrosoftType 
mscve
 mscve
🔗 msrc.microsoft.com👁 3 Views

GNU GRUB up to version 2.12 does not use constant-time grub memory compare, enabling side-channel attacks.

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03 Sep 2025 22:01Current
7High risk
Vulners AI Score7
CVSS 3.15.3
EPSS0.00038
SSVC
3